2.10 Useful Packages

Some Emacs packages are mentioned here as an aid to the new Viper user, to
indicate what Viper is capable of.
A vast number comes with the standard Emacs distribution, and many more exist
on the net and on the archives.

This manual also mentions some Emacs features a new user
should know about. The details of these are found in the GNU Emacs
Manual.

The features first. For details, look up the Emacs Manual.

‘Make’

Makes and Compiles can be done from the editor. Error messages will be
parsed and you can move to the error lines.

‘Shell’

You can talk to Shells from inside the editor. Your entire shell session
can be treated as a file.

‘Mail’

Mail can be read from and sent within the editor. Several sophisticated
packages exist.

‘Language Sensitive Editing’

Editing modes are written for most computer languages in existence. By
controlling indentation, they catch punctuation errors.

The packages, below, represents a drop in the sea of special-purpose
packages that come with standard distribution of Emacs.

‘Transparent FTP’

ange-ftp.el can ftp from the editor to files on other machines
transparent to the user.

‘RCS Interfaces’

vc.el for doing RCS commands from inside the editor

‘Directory Editor’

dired.el for editing contents of directories and for navigating in
the file system.

‘Syntactic Highlighting’

font-lock.el for automatic highlighting various parts of a buffer
using different fonts and colors.

‘Saving Emacs Configuration’

desktop.el for saving/restoring configuration on Emacs exit/startup.

‘Spell Checker’

ispell.el for spell checking the buffer, words, regions, etc.

‘File and Buffer Comparison’

ediff.el for finding differences between files and for applying
patches.